Internal combustion engine



July 28, 1931. .1. B. STRAUSS' INTERNAL COMBUSTION ENGINE Filed July 20,1927 Patented July 28, 1931 UNITED STATES JOSEPH B. STRAUSS, @F CHICAGO,ILLINOIS INTERNAL COMBUSTION ENGINE 7 Application filed July 20,

This invention relates to improvements in internal combustion enginesand has for its object to provide a new and improved engine of thisdescription.

The invention has as a further object to provide an air cooled internalcombustion engine.

The invention has as a further object to provide an air cooled internalcombustion engine for use on flying machines, automobiles or othermoving bodies;

The invention has other objects which are more particularly pointed outin the accompanying description.

Referring now to the drawings, Fig. 1 is a view showing one form of thedevice embodying the invention.

Fig. 2'is a sectional view through the tube showing the engine inposition.

Like numerals refer to like parts throughout the several figures.

I have shown in the drawings, an internal combustion engine arranged ina tube and adapted to be mounted upon a moving device which is drivenforward. by the engine 'so that as the-device moves forward, air Wlll.

pass through the tube and around the engine so as to cool the engine.

In the construction shown, the engine 1 is encased in a tube 2 open atthe front and rear ends. The cylinders 3 of the engine are to provide anoil radiator.

preferably provided with cooling fins 4 so as to assist in the propercooling of cylinders. This tube preferably extends beyond the engine andmay be used as a part of the frame of the structure which the engine'isused to drive.

prefer to arrange this tube with enlarged front and rear ends, the tubebeing contracted between its ends as at the point 5 so as to form aVenturi tube. I also prefer 6 located in the path of the air current andthrough which the lubricating oil is pumped so as to be cooled by thecurrent of air passing through the tube. When the device. driven by theenginemoves forward, air entering the front end 7 of the tube passesaround the engine and passes out through the discharge end 8 of the tubecarrying theheat with it and dis tive that the lubricating oil the 1927.Serial No. 207,095.

charging said heat at a point where it cannot affect the engine. Theexhaust of the engine may pass into the tube 2 so as to act to increasethe velocity of the air passing therethrough, this discharge producingan e ejector action. It will be seen that by means of the venturi andthis exhaust, the cooling air will pass through the tube and around theengine at a high velocity as the engine is moving forward'and that thecylinders of co the engine may thus be effectively and efficientlycooled without the use of a water cooling system.

In the construction shown in Fig. 2,the exhaust pipe 9 of the engine isshown as exhausting at a point beyond the contracted portion of thetube. The tube 2 is also provided with suitable doors 10 by means ofwhich access to the engine is secured. By means of this device I securea much lighter weight for any given engine. The cooling is also greatlysimplified and made so effecdoes not become burned and can be used for amuch longer period. When the engine is used on an automobile, forexample, such automobile will be of lighter weight. In such use, thetube 5 may extend through the central portion of the machine and mayform, as it were, a back bone to the entire structure. This '80eliminatesthe squeaks from the engine.

By means of this construction, the elaborate, heavy chassis bracing maybe eliminated. When used in an automobile the tube forms a compartmentaround the engine which permits leg room'to be extended around theengine on each side thereof. This permits the shortening of the body andthe Wheel base. Since the engine is encased in the tube, the noise isreduced. By means of this tube, the heat from the engine may bedischarged at the rear of the device so as not to affect the occupants.

In the construction shown the-seats 11 are arranged at opposite sides ofthe tube 5 2, lubricating oil is moved through the cooling, radiator 6by means of a pump. 12 and the pipe 13. The tube 2 is provided withcross supporting members 1 15, and 16.

The engine is used to drive the device with 1 2 retailer which it isassociated and when it is a moving device, to drive it forward.

In the construction shown, the engine is illustrated as being connectedby the drive shafts 17 with the rear axle 18 of the automobile.

ll claim:

1. An internal combustion engine, comprising a plurality of cylinders, atube ha ing a central contracted portion and enlarged front and rearends, said enlarged ends being enlarged both vertically andhorizontally, said cylinders being located in the enlarged front end ofsaid tube, and means for moving air through said tube past saidcylinders so as to cool the same.

2. An internal combustion engine comprising a plurality of cylinders, atube having a central contracted portion and enlarged front and rearends, the enlarged front and rear ends being substantially the samesize, said cylinders being located in the enlarged front end of saidtube, and means for discharging the exhaust from said engine into theenlarged rear end of said tube to cause air to move therethrough.

3. A device of the kind described comprising a frame having a hollow,strengthening member enlarged at the front, and rear ends and contractednear the middle, both ends being open, an engine located in the frontend of said hollow, strengthening member at a point back of the openingtherein, the cross sectional area of the hollow, strengthening member atthe point where the engine is located being smaller than the crosssectional area of the open end of said member.

Signed at Chicago, county of Cook and State of Illinois, this seventhday of July,

JOSEPH B. STRAUSS.

